clk: tegra: Constify peripheral clock registers

The peripheral clock registers are defined in static tables. These
tables never need to be modified at runtime, so they can reside in
read-only memory.

Signed-off-by: Thierry Reding <treding@nvidia.com>

diff --git a/drivers/clk/tegra/clk-periph-gate.c b/drivers/clk/tegra/clk-periph-gate.c
index d28d6e95020fe3913a0af333ef24680659f6aee4..88127828befea3456132dfbaa4389064a458cdb6 100644 (file)
--- a/drivers/clk/tegra/clk-periph-gate.c
+++ b/drivers/clk/tegra/clk-periph-gate.c
@@ -134,7 +134,7 @@ struct clk *tegra_clk_register_periph_gate(const char *name,
        struct tegra_clk_periph_gate *gate;
        struct clk *clk;
        struct clk_init_data init;
-       struct tegra_clk_periph_regs *pregs;
+       const struct tegra_clk_periph_regs *pregs;
 
        pregs = get_reg_bank(clk_num);
        if (!pregs)

diff --git a/drivers/clk/tegra/clk-periph.c b/drivers/clk/tegra/clk-periph.c
index ec5b6113b01270f25210216d9093d2bb37c67e4a..a17ca6d7f649bf931d5a81b203a6e8e874b8818a 100644 (file)
--- a/drivers/clk/tegra/clk-periph.c
+++ b/drivers/clk/tegra/clk-periph.c
@@ -145,7 +145,7 @@ static struct clk *_tegra_clk_register_periph(const char *name,
 {
        struct clk *clk;
        struct clk_init_data init;
-       struct tegra_clk_periph_regs *bank;
+       const struct tegra_clk_periph_regs *bank;
        bool div = !(periph->gate.flags & TEGRA_PERIPH_NO_DIV);
 
        if (periph->gate.flags & TEGRA_PERIPH_NO_DIV) {

diff --git a/drivers/clk/tegra/clk-tegra-periph.c b/drivers/clk/tegra/clk-tegra-periph.c
index ea2b9cbf9e70b0c10204d5d34dc96ab929d36427..b4e226a2f42c1684b00a8456b585f37095e89c6d 100644 (file)
--- a/drivers/clk/tegra/clk-tegra-periph.c
+++ b/drivers/clk/tegra/clk-tegra-periph.c
@@ -877,7 +877,7 @@ static void __init periph_clk_init(void __iomem *clk_base,
        struct clk **dt_clk;
 
        for (i = 0; i < ARRAY_SIZE(periph_clks); i++) {
-               struct tegra_clk_periph_regs *bank;
+               const struct tegra_clk_periph_regs *bank;
                struct tegra_periph_init_data *data;
 
                data = periph_clks + i;

diff --git a/drivers/clk/tegra/clk.c b/drivers/clk/tegra/clk.c
index 2a3a4fe803d6d27e16c7de373f0ec1b8f2164264..98e65ca9f92566f58d396428c0145e3202df8d4f 100644 (file)
--- a/drivers/clk/tegra/clk.c
+++ b/drivers/clk/tegra/clk.c
@@ -84,7 +84,7 @@ static int (*special_reset_assert)(unsigned long);
 static int (*special_reset_deassert)(unsigned long);
 static unsigned int num_special_reset;
 
-static struct tegra_clk_periph_regs periph_regs[] = {
+static const struct tegra_clk_periph_regs periph_regs[] = {
        [0] = {
                .enb_reg = CLK_OUT_ENB_L,
                .enb_set_reg = CLK_OUT_ENB_SET_L,
@@ -182,7 +182,7 @@ static int tegra_clk_rst_deassert(struct reset_controller_dev *rcdev,
        return -EINVAL;
 }
 
-struct tegra_clk_periph_regs *get_reg_bank(int clkid)
+const struct tegra_clk_periph_regs *get_reg_bank(int clkid)
 {
        int reg_bank = clkid / 32;
 

diff --git a/drivers/clk/tegra/clk.h b/drivers/clk/tegra/clk.h
index 4dbcfaec576a9d1102fa4da57fb5aba30bc92d78..3ef530a8989ddf45a50955de188e9692a7f36eed 100644 (file)
--- a/drivers/clk/tegra/clk.h
+++ b/drivers/clk/tegra/clk.h
@@ -496,7 +496,7 @@ struct tegra_clk_periph_gate {
        u8                      flags;
        int                     clk_num;
        int                     *enable_refcnt;
-       struct tegra_clk_periph_regs    *regs;
+       const struct tegra_clk_periph_regs *regs;
 };
 
 #define to_clk_periph_gate(_hw)                                        \
@@ -716,7 +716,7 @@ void tegra_init_from_table(struct tegra_clk_init_table *tbl,
 void tegra_init_dup_clks(struct tegra_clk_duplicate *dup_list,
                struct clk *clks[], int clk_max);
 
-struct tegra_clk_periph_regs *get_reg_bank(int clkid);
+const struct tegra_clk_periph_regs *get_reg_bank(int clkid);
 struct clk **tegra_clk_init(void __iomem *clk_base, int num, int periph_banks);
 
 struct clk **tegra_lookup_dt_id(int clk_id, struct tegra_clk *tegra_clk);